| F1 | F2 | F3 | F1* | F2* | |
| Al | 0.889 | 0.053 | −0.385 | 0.974 | 0.160 |
| Ca | −0.303 | 0.076 | 0.877 | −0.969 | −0.220 |
| Fe | 0.598 | −0.345 | −0.279 | 0.971 | −0.085 |
| K | 0.828 | 0.151 | 0.050 | 0.931 | −0.181 |
| Mg | 0.222 | 0.618 | 0.110 | 0.860 | 0.451 |
| Mn | 0.013 | 0.856 | 0.222 | 0.879 | 0.388 |
| Ni | −0.059 | 0.683 | 0.382 | −0.034 | −0.687 |
| P | −0.251 | 0.210 | 0.850 | −0.941 | −0.244 |
| Ti | 0.764 | 0.024 | −0.318 | 0.922 | 0.290 |
| Zr | −0.153 | 0.823 | −0.294 | 0.170 | 0.848 |
| 特征值 | 1.91 | 2.45 | 1.25 | 4.60 | 1.80 |
| 方差解释率 | 19.1% | 24.5% | 12.5% | 46.0% | 18.0% |